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past的相关文献在1985年到2023年内共计39138279篇,主要集中在自动化技术、计算机技术、常用外国语、肿瘤学 等领域,其中期刊论文83篇、专利文献39138196篇;相关期刊70种,包括中国广告、高中生、考试与评价(英语外研新标准初一版)等; past的相关文献由50000位作者贡献,包括不公告发明人、王伟、张伟等。

past—发文量

期刊论文>

论文:83 占比:0.00%

专利文献>

论文:39138196 占比:100.00%

总计:39138279篇

past—发文趋势图

past

-研究学者

  • 不公告发明人
  • 王伟
  • 张伟
  • 王磊
  • 李伟
  • 张磊
  • 刘伟
  • 王勇
  • 张涛
  • 李强
  • 期刊论文
  • 专利文献

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    • 张妮; 刘绘绘; 李玲玲
    • 摘要: 当前,教师研修活动评价面临的最大困难之一是缺乏科学合理的评价分析框架,从而导致评价效果缺乏科学性和客观性。PAST(Pedagogy-Assessment-Space-Technology,教学法—评价—空间—技术)视域下的教师研修活动评价以信息技术为支撑,可有效突破这一瓶颈。具体而言,其评价框架以教学法、评价、空间和技术等核心要素为一级分析指标,以教学方法、活动设计、研修实践等13个维度为二级分析指标进行设计,依据该分析框架对湖南省株洲市荷塘区开展的精准教研支持下的工作坊主题研修活动进行评价,为综合评价教师研修活动效果提供具体的参考框架。
    • 阿熊; 小小(图)
    • 摘要: Study the past if you would define the future."—Confucius "温故而知新。”—一孔子"What''s past is prologue."—Wiffiam Sfiakespeare, The Tempest"凡是过去,皆为序章。”---莎士比亚,《暴风雨》
    • Kern E. Kenyon
    • 摘要: A new theoretical framework is applied to the steady fluid flow past a solid smooth sphere. Bernoulli’s law along a streamline is combined with the cross-stream force balance: centrifugal force on the curved flow equals a pressure gradient. When compared with the standard potential theory for flow past a sphere in a text book, the prospect of a major discrepancy is found. Whereas the decay rate of the velocity perturbation away from the sphere goes as the inverse cube of the distance in the text book, the decay rate computed here is in all likelihood very different, and it depends on an unknown constant function, the radius of curvature of the streamlines versus distance from the sphere. When that function is supplied either from another theory or from detailed observations (probably streak photographs), then the new approach can be solved completely. In any case, accurate measurements of flow rates at different positions with respect to the solid are badly needed.
    • 金英果
    • 摘要: As technology advances, services are becoming increasingly "tradable”. And trade in services has become the most dynamic segment of world trade over the past 20 years, providing significant opportunities for deveLoping and least developed countries.
    • 符爱萍
    • 摘要: 总词数:352words限时:6.5分钟阅读速度:实际阅读耗时: People say ,you cannot change the environ- ment ,hut can change yourself; you cannot change the facts,hut can change attitudes;you cannot change the past, but can be changed now;you cannot control other people ,but can your own;you cannot do everything be masters of well,but can be conscientious in everything; you cannot control the weather ,but can change the mood;you cannot choose looks, but it can show a smile.
    • 林月
    • 摘要: 开头篇 1.开篇点题法文章一开头就交代清楚文章的主题是什么。 I am deeply impressed by the great changes that have taken place in the school over the past three years.2.有的放矢法在文章的开头点明写作目的。 I am Li Hua from Xingguang Middle School. The topic of my speech is "Let' s Ride Bicycles".
    • 董振国1; 夏军1; 姜晓天(翻译)1
    • 摘要: Ethnic minority policies for China’s Guangxi Zhuang Autonomous Region continue supporting rapid development of ethnic settlements-with smaller population and assisting people in financial difficulties.In particular,three relatively sparsely populated ethnic groups here have seen tremendous success in poverty alleviation and a better lifestyle.The Gin ethnic group''''s average annual net income now exceeds RMB 12,000.Over 70,000in the Mulao ethnic group settlements have escaped poverty in the past five years.In Maonan people''''s settlements,the poverty headcount ratio has decreased bv about 60%.
    • 摘要: W·尤金·史密斯基金会(The W.Eugene Smith Memorial Fund)于近日宣布,马克·彼得森(Mark Peterson)凭借他的《过去从未过去》(The Past Never Dead)摄影项目获得了今年3.5万美元的人文摄影奖金。彼得森通过记录过去一段时间美国社会中普遍存在的白人至上主义重又兴起的现象,从九位最终入围者中脱颖而出。尤金·史密斯奖金将帮助彼得森进一步探索这一议题,讨论沉疴泛起的白人至上主义将对美国社会产生哪些影响。
    • Kern E. Kenyon
    • 摘要: Two cylinders in a uniform flow can attract each other when their separation distance is within the zones of the perturbed velocities of the cylinders. Enhanced perturbed velocity between cylinders causes lowered pressure by Bernoulli’s law. If the cylinders touch or the gap is very small, the flow will work to separate the cylinders. One result could be an oscillation. Two recent theoretical discussions of uniform and shear flows?past a single cylinder helped spark the present prediction. No relevant experimental studies have been carried out so far.
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